CA2303256A1 - Pressure sensing reaction vessel for microwave assisted chemistry - Google Patents

Pressure sensing reaction vessel for microwave assisted chemistry Download PDF

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Publication number
CA2303256A1
CA2303256A1 CA002303256A CA2303256A CA2303256A1 CA 2303256 A1 CA2303256 A1 CA 2303256A1 CA 002303256 A CA002303256 A CA 002303256A CA 2303256 A CA2303256 A CA 2303256A CA 2303256 A1 CA2303256 A1 CA 2303256A1
Authority
CA
Canada
Prior art keywords
vessel
reaction vessel
pressure sensing
movable portion
microwave assisted
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CA002303256A
Other languages
French (fr)
Other versions
CA2303256C (en
Inventor
James Edward Thomas
Wyatt Price Hargett Jr.
Edward Earl King
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
CEM Corp
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of CA2303256A1 publication Critical patent/CA2303256A1/en
Application granted granted Critical
Publication of CA2303256C publication Critical patent/CA2303256C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B6/00—Heating by electric, magnetic or electromagnetic fields
    • H05B6/64—Heating using microwaves
    • H05B6/80—Apparatus for specific applications
    • H05B6/806—Apparatus for specific applications for laboratory use
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J19/08—Processes employing the direct application of electric or wave energy, or particle radiation; Apparatus therefor
    • B01J19/12—Processes employing the direct application of electric or wave energy, or particle radiation; Apparatus therefor employing electromagnetic waves
    • B01J19/122—Incoherent waves
    • B01J19/126—Microwaves
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L9/00—Measuring steady of quasi-steady pressure of fluid or fluent solid material by electric or magnetic pressure-sensitive elements; Transmitting or indicating the displacement of mechanical pressure-sensitive elements, used to measure the steady or quasi-steady pressure of a fluid or fluent solid material, by electric or magnetic means
    • G01L9/0041—Transmitting or indicating the displacement of flexible diaphragms
    • G01L9/0051—Transmitting or indicating the displacement of flexible diaphragms using variations in ohmic resistance
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N1/00—Sampling; Preparing specimens for investigation
    • G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
    • G01N1/44—Sample treatment involving radiation, e.g. heat
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J2219/08—Processes employing the direct application of electric or wave energy, or particle radiation; Apparatus therefor
    • B01J2219/12—Processes employing electromagnetic waves
    • B01J2219/1203—Incoherent waves
    • B01J2219/1206—Microwaves
    • B01J2219/1209—Features relating to the reactor or vessel
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J2219/08—Processes employing the direct application of electric or wave energy, or particle radiation; Apparatus therefor
    • B01J2219/12—Processes employing electromagnetic waves
    • B01J2219/1203—Incoherent waves
    • B01J2219/1206—Microwaves
    • B01J2219/1209—Features relating to the reactor or vessel
    • B01J2219/1212—Arrangements of the reactor or the reactors
    • B01J2219/1215—Single reactor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J2219/08—Processes employing the direct application of electric or wave energy, or particle radiation; Apparatus therefor
    • B01J2219/12—Processes employing electromagnetic waves
    • B01J2219/1203—Incoherent waves
    • B01J2219/1206—Microwaves
    • B01J2219/1209—Features relating to the reactor or vessel
    • B01J2219/1212—Arrangements of the reactor or the reactors
    • B01J2219/1218—Multiple reactors

Abstract

A microwave vessel system for external and noninvasive pressure monitoring and control is disclosed. The system comprises a reaction vessel (21) formed of a material that is transparent to microwave radiation, with the reaction vessel (21) including a portion that is movable (22) under pressure generated by a chemical reaction inside the vessel while maintaining the reaction sealed inside the vessel. A sensor (30) is adjacent to the movable portion (22) of the vessel (21) for detecting the motion of the movable portion as the portion responds to pressure generated inside the vessel. The system includes means for maintaining the sensor (30) against the movable portion while microwaves are applied to the vessel (21) so that the movement of the movable portion (22) under pressure is detected by the sensor (30).
CA002303256A 1997-09-15 1998-09-14 Pressure sensing reaction vessel for microwave assisted chemistry Expired - Fee Related CA2303256C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US08/929,589 1997-09-15
US08/929,589 US6086826A (en) 1997-09-15 1997-09-15 Pressure sensing reaction vessel for microwave assisted chemistry
PCT/US1998/019011 WO1999013979A1 (en) 1997-09-15 1998-09-14 Pressure sensing reaction vessel for microwave assisted chemistry

Publications (2)

Publication Number Publication Date
CA2303256A1 true CA2303256A1 (en) 1999-03-25
CA2303256C CA2303256C (en) 2007-08-07

Family

ID=25458110

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002303256A Expired - Fee Related CA2303256C (en) 1997-09-15 1998-09-14 Pressure sensing reaction vessel for microwave assisted chemistry

Country Status (8)

Country Link
US (3) US6086826A (en)
EP (1) EP1019185B1 (en)
JP (1) JP4093719B2 (en)
AT (1) ATE264138T1 (en)
AU (1) AU9480498A (en)
CA (1) CA2303256C (en)
DE (1) DE69823215T2 (en)
WO (1) WO1999013979A1 (en)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999054034A1 (en) * 1998-04-20 1999-10-28 Cem Corporation Flexible vessel and frame for microwave assisted chemistry
US6175104B1 (en) * 1998-09-04 2001-01-16 Cem Corporation Microwave probe applicator for physical and chemical processes
US6281484B2 (en) 1999-01-21 2001-08-28 Cem Corporation In-cavity connectors for system detectors in microwave assisted processes
US6287526B1 (en) * 1999-06-01 2001-09-11 Cem Corporation Sealing closure for high pressure vessels in microwave assisted chemistry
US6566637B1 (en) * 2000-06-28 2003-05-20 Cem Corporation Microwave assisted content analyzer
US6886408B2 (en) * 2001-01-31 2005-05-03 Cem Corporation Pressure measurement in microwave-assisted chemical synthesis
US7282184B2 (en) * 2002-04-19 2007-10-16 Cem Corporation Microwave assisted chemical synthesis instrument with controlled pressure release
US7144739B2 (en) * 2002-11-26 2006-12-05 Cem Corporation Pressure measurement and relief for microwave-assisted chemical reactions
US7307248B2 (en) * 2003-12-09 2007-12-11 Cem Corporation Method and apparatus for microwave assisted high throughput high pressure chemical synthesis
DE102004020915B4 (en) * 2004-04-28 2008-12-11 Centrotherm Photovoltaics Ag Pressure measuring device for vacuum systems
US7547647B2 (en) * 2004-07-06 2009-06-16 Hewlett-Packard Development Company, L.P. Method of making a structure
US20060235424A1 (en) * 2005-04-01 2006-10-19 Foster-Miller, Inc. Implantable bone distraction device and method
US7829040B2 (en) * 2009-03-05 2010-11-09 Cem Corporation High temperature high pressure vessel for microwave assisted chemistry
US9237608B2 (en) * 2009-08-14 2016-01-12 Cem Corporation Pressure stepped microwave assisted digestion
US10758880B2 (en) 2016-05-04 2020-09-01 Cem Corporation Acid digestion instrument and vessel system
CN113252434A (en) * 2021-05-14 2021-08-13 杭州谱育科技发展有限公司 Microwave digestion device and working method thereof

Family Cites Families (28)

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US34373A (en) * 1862-02-11 Improvement in oil-tanks
USRE34373E (en) 1982-09-08 1993-09-07 Cem Corporation Microwave heating apparatus for laboratory analyses
US4681996A (en) * 1982-12-16 1987-07-21 Cem Corporation Analytical process in which materials to be analyzed are directly and indirectly heated and dried by microwave radiation
US4566312A (en) * 1984-05-02 1986-01-28 Cem Corporation Apparatus and process for automatically determining fat contents of foods
JPS61104236A (en) * 1984-10-25 1986-05-22 ロ−ベルト　ボツシユ　ゲゼルシヤフト　ミツト　ベシユレンクテル　ハフツング Pressure sensor
DE3610350A1 (en) * 1986-03-27 1987-10-01 Bosch Gmbh Robert PRESSURE SENSOR
US4882286A (en) * 1986-06-13 1989-11-21 Cem Corporation Digestion apparatus useful for a kjeldahl method
US4882128A (en) * 1987-07-31 1989-11-21 Parr Instrument Company Pressure and temperature reaction vessel, method, and apparatus
JPH01296130A (en) * 1988-05-24 1989-11-29 Nissan Motor Co Ltd Pressure sensor
DE3919601A1 (en) * 1988-06-15 1989-12-21 Paar Anton Kg Device for acid-decomposition of a substance for elementary analysis under controlled pressure in a microwave field
US4940865A (en) * 1988-10-25 1990-07-10 The United States Of America As Represented By The Department Of Energy Microwave heating apparatus and method
US5066843A (en) * 1989-01-18 1991-11-19 Cem Corporation Heat resistant and light weight container for materials to be ashed, and process for manufacture thereof
US5204065A (en) * 1989-03-01 1993-04-20 Terry Floyd High pressure and high temperature digestion vessel
US5264185A (en) * 1989-03-01 1993-11-23 Floyd Terry S High pressure and high temperature digestion vessel
CA1337342C (en) * 1989-09-08 1995-10-17 Wyatt P. Hargett Ventable rupture diaphragm-protected container for heating contained materials by microwave radiation
US5230865A (en) * 1989-09-08 1993-07-27 Cem Corporation Ventable rupture diaphragm-protected container for heating contained materials by microwave radiation
US5206479A (en) * 1990-05-04 1993-04-27 Cem Corporation Microwave heating system
JPH04229986A (en) * 1990-07-19 1992-08-19 Cem Corp Movable sealed vessel contents heating temperature control type microwave heater
JPH04115521A (en) * 1990-09-05 1992-04-16 Nec Corp Resist film drying device
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Also Published As

Publication number Publication date
WO1999013979A1 (en) 1999-03-25
JP4093719B2 (en) 2008-06-04
EP1019185B1 (en) 2004-04-14
EP1019185A1 (en) 2000-07-19
DE69823215T2 (en) 2005-04-28
DE69823215D1 (en) 2004-05-19
US6086826A (en) 2000-07-11
JP2001516638A (en) 2001-10-02
ATE264138T1 (en) 2004-04-15
US6246038B1 (en) 2001-06-12
CA2303256C (en) 2007-08-07
AU9480498A (en) 1999-04-05
US6124582A (en) 2000-09-26

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MKLA Lapsed

Effective date: 20140916